cost-effective solutions to noise and vibration control
Megasorber LD5
Lightweight water-based liquid deadener
Features
Megasorber LD5 is a high-performance liquid deadener for panel vibration damping and noise control. The exceptional vibration damping properties are complimented by fast drying, ease of use, environmental friendliness and low flammability.
Megasorber LD5 is a thixotropic paste and is specially designed for trowel, pour, brush, roll-on and air-gun spray applications. Once dry, the cured film is UV resistant and water resistant.
The dry film is light in weight without compromising the high performance. Consequently, this material is recommended for weight-sensitive applications, eg aircraft, marine and automotive applications.
Megasorber LD5 effectively reduces resonant vibration. Vibration energy is absorbed within the material and converted to heat. In addition to vibration damping, it also increases substrate transmission loss as a result of the reduction of panel coincidence and panel resonance effects.
Key Features
- Water-based, non-toxic formulation
- Light weight
- Fast drying
- High solid content
- Non-sag formulation (thixotropic)
- Excellent adhesion to most substrates, even to aluminium
- High damping efficiency
- Water resistant
- UV resistant
- Ignition retardant
- Environmentally friendly
- Ease of application—can be trowelled on or sprayed on
Key Benefits
- Reduces resonant vibration and hence structure-borne noise very effectively
- Ideal for weight sensitive applications—maximum damping performance with minimum added weight
- Suitable for applications with outdoor exposure
- Increases panel transmission loss
- Easy to install and just clean up with water
Applications
- Marine—hull panels, deck head and bulkhead damping treatment
- Transportation—buses, trucks and rail-vehicles panel damping treatments
- General industries—enclosure panel damping, hoppers and chutes, machinery guards, acoustic enclosures
- Metal roof panel and wall cladding to reduce rain impact noise
- Whitegoods—dishwashers damping treatment on the stainless steel panels
- Automotive—damping treatment for door panels, roof panels, floor panels
LD5 can be trowelled or sprayed on. It is especially suitable for panels with complicated shapes. It can be painted over with an acrylic paint.
The photos below show LD5 being applied and the finished result:
Tech Specs
Standard Product Range
| Standard Product | Thickness | Decay Rate (dB/sec at:) | ||
|---|---|---|---|---|
| 25°C | 40°C | 60°C | ||
| Megasorber LD5 | 1.41mm | 44 | 16 | 10 |
| 0.88mm | 22 | 7 | 3 | |
| 0.71mm | 16 | 7 | 5 | |
Note: Tested to AS1937. 10 -1977: Determination of damping coefficient by the thick plate method.
Damping Co-efficient (Cd) or System Loss Factor
Damping Co-efficient (Cd) or System Loss Factor: greater than or equal to 0.22
Temperature: 20°C
Frequency: 200Hz
Substrate: 1mm thick steel sheet
Coating thickness ratio (costing/substrate): 1.5:1
IMPORTANT NOTICE AND DISCLAIMER
Specifications are subject to change without notice. Please contact us for the latest version. The data listed in this data sheet are typical or average values based on tests conducted by independent laboratories or by the manufacturer. They are indicative only of the results obtained in such tests and should not be considered as guaranteed maximums or minimums. Materials and installation methods must be tested under actual service to determine their suitability for a particular purpose.
Related Products
If a simple peel and stick-on application method is preferred, please refer to our self-adhesive damping sheets:
Megasorber D14—self-adhesive constrained-layer vibration damping sheet
Megasorber DIS8—self-adhesive vibration damping and isolation sheet
Megasorber D18—self-adhesive vibration damping sheet